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TheRock/compiler/amd-llvm/clang/test/CXX/drs/cwg8xx.cpp
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

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// RUN: %clang_cc1 -std=c++98 -triple x86_64-unknown-unknown %s -fexceptions -fcxx-exceptions -pedantic-errors -verify-directives -verify=expected,cxx98-17
// RUN: %clang_cc1 -std=c++11 -triple x86_64-unknown-unknown %s -fexceptions -fcxx-exceptions -pedantic-errors -verify-directives -verify=expected,cxx98-17,since-cxx11
// RUN: %clang_cc1 -std=c++14 -triple x86_64-unknown-unknown %s -fexceptions -fcxx-exceptions -pedantic-errors -verify-directives -verify=expected,cxx98-17,since-cxx11
// RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-unknown %s -fexceptions -fcxx-exceptions -pedantic-errors -verify-directives -verify=expected,cxx98-17,since-cxx11
// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-unknown %s -fexceptions -fcxx-exceptions -pedantic-errors -verify-directives -verify=expected,since-cxx20,since-cxx11
// RUN: %clang_cc1 -std=c++23 -triple x86_64-unknown-unknown %s -fexceptions -fcxx-exceptions -pedantic-errors -verify-directives -verify=expected,since-cxx20,since-cxx11
// RUN: %clang_cc1 -std=c++2c -triple x86_64-unknown-unknown %s -fexceptions -fcxx-exceptions -pedantic-errors -verify-directives -verify=expected,since-cxx20,since-cxx11
namespace cwg820 { // cwg820: 2.7
export template <class T> struct B {};
// cxx98-17-warning@-1 {{exported templates are unsupported}}
// since-cxx20-error@-2 {{export declaration can only be used within a module interface}}
export template<typename T> void f() {}
// cxx98-17-warning@-1 {{exported templates are unsupported}}
// since-cxx20-error@-2 {{export declaration can only be used within a module interface}}
} // namespace cwg820
namespace cwg873 { // cwg873: 3.0
#if __cplusplus >= 201103L
template <typename T> void f(T &&);
template <> void f(int &) = delete; // #cwg873-lvalue-ref
template <> void f(int &&) = delete; // #cwg873-rvalue-ref
void g(int i) {
f(i); // calls f<int&>(int&)
// since-cxx11-error@-1 {{call to deleted function 'f'}}
// since-cxx11-note@#cwg873-lvalue-ref {{candidate function [with T = int &] has been explicitly deleted}}
f(0); // calls f<int>(int&&)
// since-cxx11-error@-1 {{call to deleted function 'f'}}
// since-cxx11-note@#cwg873-rvalue-ref {{candidate function [with T = int] has been explicitly deleted}}
}
#endif
} // namespace cwg873
// cwg882: 3.5
#if __cplusplus >= 201103L
int main() = delete;
// since-cxx11-error@-1 {{'main' is not allowed to be deleted}}
#endif